列表文件和目录会在结果上返回不区分大小写的区分。有没有办法强制区分大小写的结果？

Question

我创建了一个文件夹结构，如下所示，子文件夹中有一些图像。

Test 1
    Test 2.1
        Test 2.1.1
        Test 2.1.2
    Test 2.2

当调用'getMetadataWithChildren'时，我似乎返回了混合的案例结果，例如：

Array
(
    [hash] => fd2934448f39ea3aa37faca9bbf72beb
    [revision] => 14666
    [rev] => 394a08b41a0c
    [thumb_exists] =>
    [bytes] => 0
    [modified] => Thu, 10 Jul 2014 11:18:25 +0000
    [path] => /Test 1/Test 2.1
    [is_dir] => 1
    [icon] => folder
    [root] => dropbox
    [contents] => Array
        (
            [0] => Array
                (
                    [revision] => 14672
                    [rev] => 395008b41a0c
                    [thumb_exists] => 1
                    [bytes] => 879394
                    [modified] => Thu, 10 Jul 2014 11:18:25 +0000
                    [client_mtime] => Tue, 14 Jul 2009 05:32:31 +0000
                    [path] => /test 1/Test 2.1/Chrysanthemum.jpg
                    [is_dir] =>
                    [icon] => page_white_picture
                    [root] => dropbox
                    [mime_type] => image/jpeg
                    [size] => 858.8 KB
                )

            [1] => Array
                (
                    [revision] => 14670
                    [rev] => 394e08b41a0c
                    [thumb_exists] =>
                    [bytes] => 0
                    [modified] => Thu, 10 Jul 2014 11:18:25 +0000
                    [path] => /test 1/Test 2.1/Test 2.1.1
                    [is_dir] => 1
                    [icon] => folder
                    [root] => dropbox
                    [size] => 0 bytes
                )

            [2] => Array
                (
                    [revision] => 14671
                    [rev] => 394f08b41a0c
                    [thumb_exists] =>
                    [bytes] => 0
                    [modified] => Thu, 10 Jul 2014 11:18:25 +0000
                    [path] => /test 1/Test 2.1/Test 2.1.2
                    [is_dir] => 1
                    [icon] => folder
                    [root] => dropbox
                    [size] => 0 bytes
                )

        )


    [size] => 0 bytes
)

请注意，在'contents'数组中，路径与提供的路径不同（并且在我的Dropbox中命名）。我需要将结果作为正确的区分大小写，以便将它们分组到我的应用程序中，所以我错过了一些简单的东西，或者这是Dropbox API的问题以及返回的结果？

非常感谢提前！